Which of the following is a sign of dehydration?

Thirst is a well-known and significant indicator of dehydration. When the body lacks sufficient water, it triggers thirst as a physiological response to encourage fluid intake. This response is vital as it prompts individuals to hydrate before the situation becomes more severe. Thirst is your body’s way of signaling that it needs additional fluids to maintain balance and proper function.

In contrast, increased appetite, frequent urination, and clear urine are not typical signs of dehydration. Increased appetite often suggests the opposite, as some individuals may feel hungrier when they are well-hydrated or consuming sufficient nutrients. Frequent urination usually indicates adequate hydration, as the body effectively excretes excess fluids. Clear urine is a sign of good hydration, as it typically means that the kidneys are well-hydrated and functioning properly, indicating that the body has enough water.